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KMID : 1164220130250010033
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Journal of Korean Society for Radiotherapeutic Technology
2013 Volume.25 No. 1 p.33 ~ p.40
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Utility Estimation of the Application of Auditory-Visual-Tactile Sense Feedback in Respiratory Gated Radiation Therapy
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Jo Jung-Hun
Kim Byeong-Jin
Roh Shi-Won
Lee Hyeon-Chan
Jang Hyeong-Jun
Kim Hoi-Nam
Song Jae-Hun
Kim Young-Jae
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Abstract
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Purpose: The purpose of this study was to evaluate the possibility to optimize the gated treatment delivery time and maintenance of stable respiratory by the introduction of breath with the assistance of auditory-visual-tactile sense.
Materials and Methods: The experimenter’s respiration were measured by ANZAI 4D system. We obtained natural breathing signal, monitor-induced breathing signal, monitor & ventilator-induced breathing signal, and breath-hold signal using real time monitor during 10 minutes beam-on-time. In order to check the stability of respiratory signals distributed in each group were compared with means, standard deviation, variation value, beam_time of the respiratory signal.
Results: The stability of each respiratory was measured in consideration of deviation change studied in each respiratory time lapse. As a result of an analysis of respiratory signal, all experimenters has showed that breathing signal used both Real time monitor and Ventilator was the most stable and shortest time.
Conclusion: In this study, it was evaluated that respiratory gated radiation therapy with auditory-visual-tactual sense and without auditory-visual-tactual sense feedback. The study showed that respiratory gated radiation therapy delivery time could significantly be improved by the application of video feedback when this is combined with audio-tactual sense assistance. This delivery technique did prove its feasibility to limit the tumor motion during treatment delivery for all patients to a defined value while maintaining the accuracy and proved the applicability of the technique in a conventional clinical schedule.
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KEYWORD
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respiratory gated radiation therapy, real time monitor, ventilator, respiratory signal
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